The TSS (Tuple Space Search) algorithm in Open vSwitch 2.x through 2.17.2 and 3.0.0 allows remote attackers to cause a denial of service (delays of legitimate traffic) via crafted packet data that requires excessive evaluation time within the packet classification algorithm for the MegaFlow cache, aka a Tuple Space Explosion (TSE) attack.
{
"cpe": [
"cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*",
"cpe:2.3:a:openvswitch:openvswitch:3.0.0:*:*:*:*:*:*:*"
],
"source": [
"CPE_RANGE",
"CPE_STRING"
],
"extracted_events": [
{
"introduced": "2.0.0"
},
{
"last_affected": "2.17.2"
},
{
"introduced": "3.0.0"
},
{
"last_affected": "3.0.0"
}
]
}